Palmitoyl Dipeptide-6 vs PGPIPN
Side-by-side comparison of key properties, dosing, and research.
Skin & CosmeticAnti-Aging & Longevity
Palmitoyl Dipeptide-6Immune Support
PGPIPN- Summary
- Palmitoyl Dipeptide-6 is a synthetic dipeptide (lysine-threonine) with a palmitoyl fatty acid tail, designed to penetrate the skin barrier and stimulate the extracellular matrix components essential for skin firmness. It activates fibronectin and type IV collagen synthesis, improving skin density and firmness particularly in mature or sagging skin.
- PGPIPN is a bioactive hexapeptide (Pro-Gly-Pro-Ile-Pro-Asn) derived from beta-casein during enzymatic digestion. It exhibits anti-inflammatory properties via opioid receptor modulation and cytokine suppression, making it relevant for gut health, systemic inflammation, and as a component of casein-derived functional foods.
- Half-Life
- Not applicable (topical)
- Estimated 30-120 minutes (peptide degradation)
- Admin Route
- Topical
- Oral, Subcutaneous (research)
- Research
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- Typical Dose
- 0.005–0.05% in formulation
- 200-500 mg per day
- Frequency
- Once or twice daily
- Once or twice daily
- Key Benefits
- Increases skin firmness and density
- Stimulates fibronectin and collagen IV production
- Strengthens the dermal-epidermal junction
- Reduces skin sagging in mature skin
- Improves skin texture and smoothness
- Supports extracellular matrix integrity
- Anti-inflammatory effects via cytokine suppression
- Gut mucosal protection and intestinal barrier support
- Opioid receptor modulation for gut motility regulation
- Potential analgesic activity via central and peripheral opioid pathways
- Explored for inflammatory bowel conditions and gut dysbiosis
- Natural origin (food-derived) with favorable safety profile
- Side Effects
- Generally well-tolerated
- Rare mild skin irritation in sensitive individuals
- No known systemic effects at cosmetic concentrations
- Generally very well-tolerated given food-derived origin
- Theoretical opioid-mediated constipation at high doses
- Rare milk protein allergy in casein-sensitive individuals
- Stacks With
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